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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 4 — Feb. 15, 2011
  • pp: 514–516

Magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and a ferromagnetic thin film

Chih-Ming Wei, Chih-Wei Chen, Chun-Hsiung Wang, Ju-Ying Chen, Yu-Chuan Chen, and Yang-Fang Chen  »View Author Affiliations


Optics Letters, Vol. 36, Issue 4, pp. 514-516 (2011)
http://dx.doi.org/10.1364/OL.36.000514


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Abstract

We demonstrate magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and ferromagnetic thin film. We found that both the frequency and linewidth of the localized surface plasmon resonance can be manipulated by applying an external magnetic field. The underlying mechanism is attributed to the variation of the dielectric constant in the ferromagnetic thin film resulting from the change of magnetization. Our result shown here paves an alternative route for manipulation of the characteristics of the surface plasmon resonance, which may serve as a new design concept for the development of magneto-optical devices.

© 2011 Optical Society of America

OCIS Codes
(160.3900) Materials : Metals
(160.4760) Materials : Optical properties
(240.6680) Optics at surfaces : Surface plasmons
(300.1030) Spectroscopy : Absorption

ToC Category:
Materials

History
Original Manuscript: November 3, 2010
Revised Manuscript: January 10, 2011
Manuscript Accepted: January 10, 2011
Published: February 8, 2011

Citation
Chih-Ming Wei, Chih-Wei Chen, Chun-Hsiung Wang, Ju-Ying Chen, Yu-Chuan Chen, and Yang-Fang Chen, "Magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and a ferromagnetic thin film," Opt. Lett. 36, 514-516 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-4-514


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